The discharge measurement is performed by using the proven
tracer-dilution method. It can be deployed in turbulent rivers, creeks
or waters for which data regarding the cross-section profile are not
available. As a tracer material salt is used. After insertion of a known
amount of tracer material two conductivity probes are determining the
discharge.

Fields of application

The TQ-tracer system is especially suitable for fast-flowing,
turbulent waters with complex cross sections, for example, mountain
streams, small brooks, tributaries or even fish ladders. The measuring
device is used particularly in hydrometry as well as by engineering
offices, civil engineers or power plant operators, for instance for
control measurements or for evaluating projects.

The tracer dilution method can be applied for discharge measurement
in all waters in which a thorough mixing of the tracer ensues. High
turbulences, alternating cross sections and stones promote the mixing
process and therefore, have a positive effect on the measurement. For
particularly turbulent waters and very high flow velocities there is a
model available with robust reinforcement. The user-friendly software
TQ-Commander leads comfortably through the measurement and provides a
full measuring report.

Technical Specs TQ-S

General

• Mesasuring principle tracer dilution method with instantaneous feed
• Application discharges up to 10 m³/s

TQ-Amp (measurement device with Bluetooth-transmission)

• Memory capacity none (data storage in the receiving device)
• Tranmsission interval 1 second
• Data transfer Bluetooth class 1 (transmission range up to 100m)
• Operating temperature -20 … +60 °C
• Protection IP66
• Energy supply 3x 1.5 V batteries, size AA or 3x 1.5 V / 2500 mAh NiMH batteries, size AA
• Operation time 50 hrs (with 3x 2500 mAh batteries)
• Charging time approx. 10 hrs

Probes

• Probe type conductivity probe
• Measurement range 0 … 5000 μS/cm
• Resolution 0.1 μS/cm
• Operating temperature -20 … +60 °C
• Other features integrated temperature compensation
• (Further types of probes for different tracer materials available upon request)

Accessories included

• Pipette 500 μl pipette
• Jars bottle for calibration solution, measuring cup 600 ml, measuring cup 500 ml, volumetric flask 250 ml
• Others USB memory stick (software and documentation), USB Bluetooth adapter, recharger
• TQ-Commander (software) PC-version Windows XP, Windows Vista or Windows 8 / 8.1

See more environmental tools here.